amazing what these little workhorses can pull, I also hook 2 choker chains together and just hook a slip hook (3/8 chain) around the base of the ball and have pulled tree length logs up to 18"dbh and 60 feet long
a 5/16 chain slip hook won't quite fit around the ball, if I'm using that chain, I just make a loop with the grab hook end and loop it over the ball